Hi Lerry, 
 
I agree with Gene, it's almost certainly neither European nor is it medieval, and by no means is it a dagger. 
 
At first sight, it reminds one of the iron of a Friualian spear, North Italy, 2nd half 15th c.- see attachments of a piece from my collection - but the tip of the blade is way too short and the hooks would only make use if they were pointed. As the remaining hook ends are blunt, I would tentatively suggest either agricultural use - as you surmised - or representative function. 
 
Best, 
Michael
		 
		
		
		
			
		
		
		
		
		
		
		
		
			
				  
				
					
						Last edited by Matchlock; 27th November 2010 at 12:07 AM.
					
					
				
			
		
		
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